Shock-absorber.



F. H. BABCQCK.

SEOCK ABSURBBR.

APPLICATION FILED MAILZL lQlZ.

Patented D80.l5,19ii

- Attorn connected to any ma he of motor car \vithinitthe necessity of lengthening or shortening th connection of the plungers, as will pres cntly appear.

The lower end of the cylinder 7 i'ornied integral and is provided with the concentrically disposed stalling box 9 for the l'QCtPtlOIl of the piston rod it), said piston od 10 being rigidly 1 nnected to the piston ll Within the cylinder and said rod being insertible through the open end 12 of the cylinder, which is sealed by the rtanovahlo cap l3, in such a manner that the cap air and liquid tight and prevents leakage at this point of the cylinder i A, threaded Port 1 {is formed in the sealed head 8 of the casing T and has led theret'roan the pipe 15, which has connected at its end. the check valve casing 16, the valve therein being so disposed as to permit ol the inflow of air, due to the upward movement of the piston ll, but which will prevent, the outiiovv when the piston ll is moved downwardly. In order to provide a moans for slightly venting the C -lllhltl 7 due U) the rlonnnard movement oi the piston 11 and, as has been found in practice. relieve the too sudd n in!" due to the reparation of the lloor i from the axle during the passage ol' thr motor ctr over a hillocl: or ridge in the road a vent li' is formed in the pipe 15 intcrnimliatc the port; 11 and the check valve l 'L l ly this means a slight bleeding of the air within the cylinder 7 below the piston 11 is prmid rl. This vent opening l7 varies in 1 :llt'fiz'iiing to the size of the car and the capacity thereof. a two passenger car HtCHSnlialliIlQ the employment of an exceedingly small vent While a seven pa senger car or truck necessitates the employment oi :1, propor tionately enlarged. rent or bleeding port.

The port 1? formed in the upp r end 0? the cylinder 7 has disposed therein the cork valve casing 1 having a manual y c n trolled 0001590, the same being readil ac cr' ible. that i when; the devi enr ploycd as shovvn in l below the rea seat of the motor car, so that the valve it) may be manipulated according to the load ot the rchicle to permit; of the near. r blr-eding of the cylinder upon the ni' sl'roluof the piston 11, or it' so desired, a check valve and bleeding condnhv as 15 may ho employed, out it has been found in practice that a valve as shown in Fig. 2 will elliriently operate. the upward action of the piston 11 does not: have the sarre' use as the dmvnward more ment, as thes 'n'ingz S of the motor car will in most cases carry the load and relieve the shock, under varying load conditions and when the floor or chassis '1 is moving toward the springs.

Mounted upon the lower end of the piston rod 10 is a sleeve 21, the same being connected thereto by n'icans oil the removable 1.,12o,sas

pin 41, said sleeve being provided n ith the aperture l lugs for the reception of the pin. 23 which is pivotally connected to the link 24, said link 24; being pivoted to the spaced lugs $25 of the axle engaging member 26 so as to hare-a movement at right angles to the connection at- .l li it being necessary to produce a flexing member at this point so that; the clamping members Qt; and 2? may be positioned as shown in Fig. l or so that the hens '35) are atright' sing es thereto. according to the make of the car upon which the pres rnt dm'ice is flppllttl.

The member 26 of the clam iiing device prmiilrd with a spur it? which is adapted to be clamped in to the axle 2 and thus hold the clamping member against rotation rela-- rivelv to the axle 2 and thus maintain the link ill n proper alined relation to the piston 10. la rh po ition as shown in Fla. 1. it is preferred that he device be so adjusted. that the plunge." ll ill be tl OHtlt'l erir l'i'a lff '3? the vvlirul-"l i that i when the spr ng 5% is in ri rinal condition It will thus be sern. that by threading the t-l the cylinder, that the rctaii'zingz date 2 mar be readily rotated lie hold lflzilllSl, longitudinal ent the wanting threads upon the cvlimlrur an? aperture of the l within the, plate. and that such plate may be locked t rotarv lXlOYfl'H lll, :li-r properly adinrfed in means of the rrl st rev: 5'.

What is claim d is:

t. The combination with two members m vablr to and from each otliein of a pnew inatic shoch ahsorbein. including a cylinder ha ng; a, closed. end, a cap for the othzer end. :1 pi n mounted in the cylinder, a rod coiiinietctl to the piston, means for attaching the rod to one o l" the movablenicnibers, the exterior of the cylinder beginning atits rim-rd end being provided with SCIO -Y thread 1 and a plate for attaching the cylinder to the other movable mem er having an intrr w-rlv screw thrcadcil apcrtnre. whereby the aperture of the plate fits b er the closed end of the cvlinder and by rotation causes the screw threal'ls of the plate and cylinder to 011133? and hold the plate again i longitndi nal mo ement relati ly to th; i i inder.

1?. he combinatioi'i with tw members movablr to and from each other, of a pnew niatic shock absorber, inc-hiding a cylinder having a closed end, a stop for the other end, a piston mounted in the cylinder, a rod connected to the piston, means for attaching the rod to one of the movable members. the exterior of the cylinder beginning at its closed end being provided with screw threads, a plate for attaching the cylinder to the other movable member having an interiorly screw threaded aperture, whereby the aperture of the plate fits over the closed end of the cylinder and by rotation causes the 1w 1" 4:31p. plate m in testimuny that, I claim the foregsil'lg as 511N300. :md. imid {he Mate Elihu ismv own i have; hereto affixed mv swnat-urr;

33 P? g 4 b nni mmement wiativeiy to 119 1" mama; uarriml by the phztc; n {he cylim ier m 3: :k the plate Witnesses:

pendvnt ruti-zrjy mmement re m the JEFF. G. WIKGERT,

. y'iinder. H. P. TURNER.

in the presence of two Witnesses.

FRANK H. BABCOCK. 

